Pull x86 fixes from Peter Anvin:

 - Three EFI-related fixes

 - Two early memory initialization fixes

 - build fix for older binutils

 - fix for an eager FPU performance regression -- currently we don't
   allow the use of the FPU at interrupt time *at all* in eager mode,
   which is clearly wrong.

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Allow FPU to be used at interrupt time even with eagerfpu
  x86, crc32-pclmul: Fix build with older binutils
  x86-64, init: Fix a possible wraparound bug in switchover in head_64.S
  x86, range: fix missing merge during add range
  x86, efi: initial the local variable of DataSize to zero
  efivar: fix oops in efivar_update_sysfs_entries() caused by memory reuse
  efivarfs: Never return ENOENT from firmware again

With the addition of eagerfpu the irq_fpu_usable() now returns false
negatives especially in the case of ksoftirqd and interrupted idle task,
two common cases for FPU use for example in networking/crypto.  With
eagerfpu=off FPU use is possible in those contexts.  This is because of
the eagerfpu check in interrupted_kernel_fpu_idle():

...
  * For now, with eagerfpu we will return interrupted kernel FPU
  * state as not-idle. TBD: Ideally we can change the return value
  * to something like __thread_has_fpu(current). But we need to
  * be careful of doing __thread_clear_has_fpu() before saving
  * the FPU etc for supporting nested uses etc. For now, take
  * the simple route!
...
 	if (use_eager_fpu())
 		return 0;

As eagerfpu is automatically "on" on those CPUs that also have the
features like AES-NI this patch changes the eagerfpu check to return 1 in
case the kernel_fpu_begin() has not been said yet.  Once it has been the
__thread_has_fpu() will start returning 0.

Notice that with eagerfpu the __thread_has_fpu is always true initially.
FPU use is thus always possible no matter what task is under us, unless
the state has already been saved with kernel_fpu_begin().

[ hpa: this is a performance regression, not a correctness regression,
  but since it can be quite serious on CPUs which need encryption at
  interrupt time I am marking this for urgent/stable. ]
Signed-off-by: Pekka Riikonen <priikone@iki.fi>
Link: http://lkml.kernel.org/r/alpine.GSO.2.00.1305131356320.18@git.silcnet.org
Cc: <stable@vger.kernel.org> v3.7+
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

binutils prior to 2.18 (e.g. the ones found on SLE10) don't support
assembling PEXTRD, so a macro based approach like the one for PCLMULQDQ
in the same file should be used.

This requires making the helper macros capable of recognizing 32-bit
general purpose register operands.

[ hpa: tagging for stable as it is a low risk build fix ]
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/51A6142A02000078000D99D8@nat28.tlf.novell.com
Cc: Alexander Boyko <alexander_boyko@xyratex.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Huang Ying <ying.huang@intel.com>
Cc: <stable@vger.kernel.org> v3.9
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

Merge tag 'stable/for-linus-3.10-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Pull Xen fixes from Konrad Rzeszutek Wilk:
 - Use proper error paths
 - Clean up APIC IPI usage (incorrect arguments)
 - Delay XenBus frontend resume is backend (xenstored) is not running
 - Fix build error with various combinations of CONFIG_

* tag 'stable/for-linus-3.10-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xenbus_client.c: correct exit path for xenbus_map_ring_valloc_hvm
  xen-pciback: more uses of cached MSI-X capability offset
  xen: Clean up apic ipi interface
  xenbus: save xenstore local status for later use
  xenbus: delay xenbus frontend resume if xenstored is not running
  xmem/tmem: fix 'undefined variable' build error.

Tomi and I will now take care of the Framebuffer Layer

The git tree is now on kernel.org
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull sound updates from Takashi Iwai:
 "Again very calm updates at this time.

  All small fixes for individual drivers, mostly ASoC codecs, in
  addition to soc-compress fix for capture streams which is safe to
  apply as there is no in-tree users yet."

* tag 'sound-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: cs42l52: fix default value for MASTERA_VOL.
  ASoC: wm8994: check for array index returned
  ASoC: wm8994: Fix reporting of accessory removal on WM8958
  ASoC: wm8994: use the correct pointer to get the control value
  ASoC: wm5110: Correct DSP4R Mixer control name
  ALSA: usb-6fire: Modify firmware version check
  ASoC: cs42l52: fix master playback mute mask.
  ASoC: cs42l52: fix bogus shifts in "Speaker Volume" and "PCM Mixer Volume" controls.
  ASoC: cs42l52: microphone bias is controlled by IFACE_CTL2 register.
  ASoC: davinci: fix sample rotation
  ASoC: wm5110: Add missing speaker initialisation
  ASoC: soc-compress: Send correct stream event for capture start
  ASoC: max98090: request IRQF_ONESHOT interrupt

Merge mn10300 fixes from David Howells.

* emailed patches from David Howells <dhowells@redhat.com>:
  MN10300: Need pci_iomap() and __pci_ioport_map() defining
  MN10300: ASB2305's PCI code needs the definition of XIRQ1
  MN10300: Enable IRQs more in system call exit work path
  MN10300: Fix ret_from_kernel_thread

Include the generic definitions of pci_iomap() and __pci_ioport_map()
otherwise we can get errors like:

  lib/pci_iomap.c: In function 'pci_iomap':
  lib/pci_iomap.c:37: error: implicit declaration of function '__pci_ioport_map'
  lib/pci_iomap.c:37: warning: return makes pointer from integer without a cast

and:

  drivers/pci/quirks.c: In function 'disable_igfx_irq':
  drivers/pci/quirks.c:2893: error: implicit declaration of function 'pci_iomap'
  drivers/pci/quirks.c:2893: warning: initialization makes pointer from integer without a cast
  drivers/pci/quirks.c: In function 'reset_ivb_igd':
  drivers/pci/quirks.c:3133: warning: assignment makes pointer from integer without a cast
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Ken Cox <jkc@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

The code for PCI in the ASB2305 needs the definition of XIRQ1 from proc/irq.h
otherwise the following error appears:

  arch/mn10300/unit-asb2305/pci.c: In function 'unit_pci_init':
  arch/mn10300/unit-asb2305/pci.c:481: error: 'XIRQ1' undeclared (first use in this function)
  arch/mn10300/unit-asb2305/pci.c:481: error: (Each undeclared identifier is reported only once
  arch/mn10300/unit-asb2305/pci.c:481: error: for each function it appears in.)
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Ken Cox <jkc@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Enable IRQs when calling schedule() for TIF_NEED_RESCHED and
do_notify_resume().  If interrupts are enabled during do_notify_resume(), a
warning can be seen (see lower down).

Whilst we're at it, resume_userspace can be made local to entry.S as it is not
called outside of there and it can be merged with the part of work_resched that
occurs after schedule() is called.

  WARNING: at kernel/softirq.c:160 local_bh_enable+0x42/0xa0()
  Call Trace:
    local_bh_enable+0x42/0xa0
    unix_release_sock+0x86/0x23c
    unix_release+0x20/0x28
    sock_release+0x17/0x88
    sock_close+0x20/0x28
    __fput+0xc9/0x1fc
    ____fput+0xb/0x10
    task_work_run+0x64/0x78
    do_notify_resume+0x53d/0x544
    work_notifysig+0xa/0xc
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Ken Cox <jkc@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

ret_from_kernel_thread needs to set A2 to the thread_info pointer before
jumping to syscall_exit.

Without this, we never correctly start userspace.

This was caused by the rejuggling of the fork/exec paths in commit
ddf23e87 ("mn10300: switch to saner kernel_execve() semantics")
Reported-by: Ken Cox <jkc@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Ken Cox <jkc@redhat.com>
Acked-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'pinctrl-fixes-v3.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin-control fixes from Linus Walleij:
 - Six patches fixing up the suspend/resume and wakeup handling of the
   Samsung and Exynos drivers.
 - Errorpath fixes for four different drivers.  All on the probe()
   errorpath.
 - Make the debugfs code for pin config take the right mutex.

* tag 'pinctrl-fixes-v3.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: pinconf: take the right mutex
  pinctrl: sunxi: fix error return code in sunxi_pinctrl_probe()
  pinctrl: exynos: Handle suspend/resume of GPIO EINT registers
  pinctrl: samsung: Allow per-bank SoC-specific private data
  pinctrl: samsung: Add support for SoC-specific suspend/resume callbacks
  pinctrl: Don't override the error code in probe error handling
  ARM: EXYNOS: Fix EINT wake-up mask configuration when pinctrl is used
  pinctrl: exynos: Add support for set_irq_wake of wake-up EINTs
  pinctrl: samsung: fix suspend/resume functionality

Apparently we should not free page that has not been allocated.
This is b/c alloc_xenballooned_pages will take care of freeing
the page on its own.
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

Commit f447d56d introduced the
implementation of the PV apic ipi interface. But there were some
odd things (it seems none of which cause really any issue but
maybe they should be cleaned up anyway):
 - xen_send_IPI_mask_allbutself (and by that xen_send_IPI_allbutself)
   ignore the passed in vector and only use the CALL_FUNCTION_SINGLE
   vector. While xen_send_IPI_all and xen_send_IPI_mask use the vector.
 - physflat_send_IPI_allbutself is declared unnecessarily. It is never
   used.

This patch tries to clean up those things.
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

Save the xenstore local status computed in xenbus_init. It can then be used
later to check if xenstored is running in this domain.
Signed-off-by: Aurelien Chartier <aurelien.chartier@citrix.com>
[Changes in v4:
- Change variable name to xen_store_domain_type]
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

If the xenbus frontend is located in a domain running xenstored, the device
resume is hanging because it is happening before the process resume. This
patch adds extra logic to the resume code to check if we are the domain
running xenstored and delay the resume if needed.
Signed-off-by: Aurelien Chartier <aurelien.chartier@citrix.com>
[Changes in v2:
- Instead of bypassing the resume, process it in a workqueue]
[Changes in v3:
- Add a struct work in xenbus_device to avoid dynamic allocation
- Several small code fixes]
[Changes in v4:
- Use a dedicated workqueue]
[Changes in v5:
- Move create_workqueue error handling to xenbus_frontend_dev_resume]
Acked-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

Merge tag 'asoc-v3.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v3.10

A series of driver specific updates, none particularly critical, plus
one fix to the compressed API code to handle capture streams properly
which is very safe for mainline as there's no current users.

Pull ARM Exynos fixes from Olof Johansson:
 "Here's a shorter set of fixes for 3.10, all for Samsung Exynos
  platforms.

  It also includes a defconfig update so that exynos_defconfig provides
  a meaningful set of drivers to boot an unmodified kernel on the
  Samsung ARM-based Chromebooks."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: exynos: defconfig update
  ARM: SAMSUNG: Add names to fimd0 IRQ resources
  ARM: EXYNOS: fix software reset logic for EXYNOS5440 SOC
  ARM: EXYNOS: Fix support of Exynos4210 rev0 SoC
  ARM: dts: Enabling samsung-usb2phy driver for exynos5250

This turns on a number of configs that are useful on the Chromebook, but also
good to have on in general:

* USB host and MMC drivers(!)
* I2C GPIO arbitration driver
* CYAPA trackpad driver
* simplefb
* CROS EC and keyboard drivers
* S5M8767 driver
* MAX77686 drivers
* MAX8997 driver
* DEVTMPFS + mount
* DM_CRYPT (as module)
* CRYPTOLOOP
* HIGHMEM
* PRINTK timestamps

This also turns off DEBUG_LL, and switches the hardcoded Samsung lowlevel
uart to uart 3 (which is only used to show the "uncompressing kernel"
message at boot, it seems).
Signed-off-by: Olof Johansson <olof@lixom.net>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Tushar Behera <tushar.behera@linaro.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>

In head_64.S, a switchover has been used to handle kernel crossing
1G, 512G boundaries.

And commit 8170e6be
    x86, 64bit: Use a #PF handler to materialize early mappings on demand
said:
    During the switchover in head_64.S, before #PF handler is available,
    we use three pages to handle kernel crossing 1G, 512G boundaries with
    sharing page by playing games with page aliasing: the same page is
    mapped twice in the higher-level tables with appropriate wraparound.

But from the switchover code, when we set up the PUD table:
114         addq    $4096, %rdx
115         movq    %rdi, %rax
116         shrq    $PUD_SHIFT, %rax
117         andl    $(PTRS_PER_PUD-1), %eax
118         movq    %rdx, (4096+0)(%rbx,%rax,8)
119         movq    %rdx, (4096+8)(%rbx,%rax,8)

It seems line 119 has a potential bug there. For example,
if the kernel is loaded at physical address 511G+1008M, that is
    000000000 111111111 111111000 000000000000000000000
and the kernel _end is 512G+2M, that is
    000000001 000000000 000000001 000000000000000000000
So in this example, when using the 2nd page to setup PUD (line 114~119),
rax is 511.
In line 118, we put rdx which is the address of the PMD page (the 3rd page)
into entry 511 of the PUD table. But in line 119, the entry we calculate from
(4096+8)(%rbx,%rax,8) has exceeded the PUD page. IMO, the entry in line
119 should be wraparound into entry 0 of the PUD table.

The patch fixes the bug.
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Link: http://lkml.kernel.org/r/5191DE5A.3020302@cn.fujitsu.comSigned-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: <stable@vger.kernel.org> v3.9
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

Pull drm fixes from Dave Airlie:
 "This is mostly exynos and intel fixes, along with some vblank patches
  I lost from Rob a few months ago that make wayland work better on lots
  of GPUs, also a qxl kconfig fix."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (22 commits)
  qxl: fix Kconfig deps - select FB_DEFERRED_IO
  drm/exynos: replace request_threaded_irq with devm function
  drm/exynos: remove unnecessary devm_kfree
  drm/exynos: fix build warnings from ipp fimc
  drm/exynos: cleanup device pointer usages
  drm/exynos: wait for the completion of pending page flip
  drm/exynos: use drm_send_vblank_event() helper
  drm/i915: avoid premature DP AUX timeouts
  drm/i915: avoid premature timeouts in __wait_seqno()
  drm/i915: use msecs_to_jiffies_timeout instead of open coding the same
  drm/i915: add msecs_to_jiffies_timeout to guarantee minimum duration
  drm/i915: force full modeset if the connector is in DPMS OFF mode
  drm/exynos: page flip fixes
  drm/exynos: exynos_hdmi: Pass correct pointer to free_irq()
  drm/exynos: exynos_drm_ipp: Fix incorrect usage of IS_ERR_OR_NULL
  drm/exynos: exynos_drm_fbdev: Fix incorrect usage of IS_ERR_OR_NULL
  drm/imx: use drm_send_vblank_event() helper
  drm/shmob: use drm_send_vblank_event() helper
  drm/radeon: use drm_send_vblank_event() helper
  drm/nouveau: use drm_send_vblank_event() helper
  ...

Pull crypto fixes from Herbert Xu:
 "This push fixes a crash in the new sha256_ssse3 driver as well as a
  DMA setup/teardown bug in caam"

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: sha256_ssse3 - fix stack corruption with SSSE3 and AVX implementations
  crypto: caam - fix inconsistent assoc dma mapping direction

Pull CIFS fixes from Steve French:
 "Fixes for a couple of DFS problems, a problem with extended security
  negotiation and two other small cifs fixes"

* 'for-3.10' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix composing of mount options for DFS referrals
  cifs: stop printing the unc= option in /proc/mounts
  cifs: fix error handling when calling cifs_parse_devname
  cifs: allow sec=none mounts to work against servers that don't support extended security
  cifs: fix potential buffer overrun when composing a new options string
  cifs: only set ops for inodes in I_NEW state

Merge tag 'trace-fixes-v3.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "Two more fixes:

  The first one was reported by Mauro Carvalho Chehab, where if a poll()
  is done against a trace buffer for a CPU that has never been online,
  it will crash the kernel, as buffers are only created when a CPU comes
  on line, but the trace files are for all possible CPUs.

  This fix is to check if the buffer was allocated and if not return
  -EINVAL.

  That was the simple fix, the real fix is a bit more complex and not
  for a -rc release.  We could have the files created when the CPUs come
  online.  That would require some design changes.

  The second one was reported by Peter Zijlstra.  If the kernel command
  line has ftrace=nop, it will lock up the system on boot up.  This is
  because the new design for 3.10 has the nop tracer bootstrap the
  tracing subsystem.  When ftrace=<trace> is defined, when a that tracer
  is registered, it starts the tracing, but uses the nop tracer to clear
  things out.  What happened here was that ftrace=nop caused the
  registering of nop to start it and use nop before it was initialized.

  The only thing nop needs to have done to initialize it is to have the
  tracer point its current_tracer structure member to the nop tracer.
  Doing that before registering the nop tracer makes everything work."

* tag 'trace-fixes-v3.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  ring-buffer: Do not poll non allocated cpu buffers
  tracing: Fix crash when ftrace=nop on the kernel command line

Pull m68k fixes from Geert Uytterhoeven:
 - futex support that I had missed before,
 - A long-overdue update of the m68k defconfigs.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Update defconfigs for v3.9
  m68k: implement futex.h to support userspace robust futexes and PI mutexes

Pull microblaze fixes from Michal Simek:
 "One patch fix futex support and my patches fix warnings which were
  reported by Geert's regression testing"

* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Reversed logic in futex cmpxchg
  microblaze: Use proper casting for inb/inw/inl in io.h
  microblaze: Initialize temp variable to remove compilation warning

The tracing infrastructure sets up for possible CPUs, but it uses
the ring buffer polling, it is possible to call the ring buffer
polling code with a CPU that hasn't been allocated. This will cause
a kernel oops when it access a ring buffer cpu buffer that is part
of the possible cpus but hasn't been allocated yet as the CPU has never
been online.
Reported-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Tested-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

The default register value for MASTERA_VOL is 0x00, the same as
MASTERB_VOL.
Signed-off-by: Nicolas Schichan <nschichan@freebox.fr>
Acked-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org

The array 'drc_cfg' of size 3 may use index value -22 (EINVAL)
The array 'retune_mobile_cfg' of size 3 may use index value -22 (EINVAL)
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

During recent refactoring the code to report removal when MICDET reports
an absent microphone was removed, causing problems for systems which rely
solely on the MICDET for this functionality. Restore it.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

In the (not so useful) kernel configuration where CONFIG_SWAP
is undefined and CONFIG_XEN_SELFBALLOONING is defined,
xen_tmem_init would use undefined variable 'static bool frontswap'.

Added #else to have #define frontswap (0) in the case where
CONFIG_FRONTSWAP is not defined.
Signed-off-by: Frederico Cadete <frederico@cadete.eu>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>